From: "Serge E. Hallyn" <serue@us.ibm.com>
To: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Cc: linux-kernel@vger.kernel.org, arnd@arndb.de,
Containers <containers@lists.linux-foundation.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
hpa@zytor.com, Alexey Dobriyan <adobriyan@gmail.com>,
roland@redhat.com, Pavel Emelyanov <xemul@openvz.org>,
Oren Laadan <orenl@cs.columbia.edu>
Subject: Re: [v11][PATCH 9/9] Document clone_with_pids() syscall
Date: Fri, 6 Nov 2009 12:39:36 -0600 [thread overview]
Message-ID: <20091106183936.GA32531@us.ibm.com> (raw)
In-Reply-To: <20091105054204.GI16142@us.ibm.com>
Quoting Sukadev Bhattiprolu (sukadev@us.ibm.com):
...
> + If a pid in the @pids list is non-zero, the kernel tries to assign
> + the specified pid in that namespace. If that pid is already in use
> + by another process, the system call fails (see EBUSY below).
> +
> + The order of pids in @pids is oldest in pids[0] to youngest pid
> + namespace in pids[nr_pids-1]. If the number of pids specified in the
In the sys_choosepid() discussion, Matt suggested it would be more
user-friendly to have the pid for the youngest pidns be pids[0].
That way the user doesn't have to know their pidns depth.
-serge
next prev parent reply other threads:[~2009-11-06 18:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-05 5:30 [v11][PATCH 0/9] Implement clone_with_pids() system call Sukadev Bhattiprolu
2009-11-05 5:36 ` [v11][PATCH 1/9] Factor out code to allocate pidmap page Sukadev Bhattiprolu
2009-11-05 5:37 ` [v11][PATCH 2/9] Have alloc_pidmap() return actual error code Sukadev Bhattiprolu
2009-11-05 5:38 ` [v11][PATCH 3/9] Define set_pidmap() function Sukadev Bhattiprolu
2009-11-05 5:38 ` [v11][PATCH 4/9] Add target_pids parameter to alloc_pid() Sukadev Bhattiprolu
2009-11-05 5:39 ` [v11][PATCH 5/9] Add target_pids parameter to copy_process() Sukadev Bhattiprolu
2009-11-05 5:40 ` [v11][PATCH 6/9] Check invalid clone flags Sukadev Bhattiprolu
2009-11-05 5:40 ` [v11][PATCH 7/9] Define do_fork_with_pids() Sukadev Bhattiprolu
2009-11-05 5:41 ` [v11][PATCH 8/9] Define clone_with_pids() syscall Sukadev Bhattiprolu
2009-11-06 18:02 ` Serge E. Hallyn
2009-11-07 20:18 ` Sukadev Bhattiprolu
2009-11-09 20:37 ` Serge E. Hallyn
2009-11-05 5:42 ` [v11][PATCH 9/9] Document " Sukadev Bhattiprolu
2009-11-06 18:39 ` Serge E. Hallyn [this message]
2009-11-06 20:18 ` Matt Helsley
2009-11-06 21:45 ` Matt Helsley
2009-11-07 2:26 ` Sukadev Bhattiprolu
2009-11-07 21:56 ` Oren Laadan
2009-11-08 15:09 ` Serge E. Hallyn
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